You will need to attend the ceremony wearing the gown and hood and carrying the trencher. The trencher may be put on once you've been "capped" and received your degree.

If you're receiving two degrees, you can choose which hood to wear at the ceremony, though you may wish to hire the second hood for photographic purposes.

If you're receiving a diploma and do not hold a degree you need only a black bachelor's gown, which is worn without hood or trencher.

Regalia for different degrees or qualifications should not be mixed (e.g. a bachelor's hood should not be worn with a master's gown, and a university hood should not be worn with the gown of any other institution, such as a professional college).